Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation the signaling molecule binds to a surface receptor All of these receptor kinases play a key role in triggering the signal cascade phosphorylated proteins act with enzymes to trigger the signal cascade the signaling molecule binds to a surface receptor All of these receptor kinases play a key role in triggering the signal cascade phosphorylated proteins act with enzymes to trigger the signal cascade ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following processes involve the combining of a message from one signaling molecule with that of another to either enhance or inhibit a cellular effect? Signal integration Signal transduction Signal reception Signal amplification Signal integration Signal transduction Signal reception Signal amplification ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The major second messengers are All of these DAG cGMP cAMP All of these DAG cGMP cAMP ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction SH2 domains specifically bind to GDP phosphorylated tyrosine residues Ca2+ phosphorylated serine residues GDP phosphorylated tyrosine residues Ca2+ phosphorylated serine residues ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The binding of ligands to many G-proteins linked receptors leads to shortlived decrease in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain extracellular signaling molecules called first messenger decrease in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain extracellular signaling molecules called first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a second messenger? Phospholipase C Both (a) and (b) Diacyl glycerol lnositol 1,4,5-triphosphate Phospholipase C Both (a) and (b) Diacyl glycerol lnositol 1,4,5-triphosphate ANSWER DOWNLOAD EXAMIANS APP